MORTGAGE SERVICING RIGHTS AND MSR FINANCING RECEIVABLES - Summary of Reserve For Servicer Advances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Servicer Advances Reserve [Roll Forward]
Beginning balance	$ 93,681	$ 65,428
Provision	47,685	63,016
Write-offs	(19,970)	(34,763)
Ending balance	$ 121,396	$ 93,681